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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the QtWidgets module of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #ifndef QUNDOGROUP_H |
| #define QUNDOGROUP_H |
| |
| #include <QtWidgets/qtwidgetsglobal.h> |
| #include <QtCore/qobject.h> |
| #include <QtCore/qstring.h> |
| |
| QT_REQUIRE_CONFIG(undogroup); |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QUndoGroupPrivate; |
| class QUndoStack; |
| class QAction; |
| |
| class Q_WIDGETS_EXPORT QUndoGroup : public QObject |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QUndoGroup) |
| |
| public: |
| explicit QUndoGroup(QObject *parent = nullptr); |
| ~QUndoGroup(); |
| |
| void addStack(QUndoStack *stack); |
| void removeStack(QUndoStack *stack); |
| QList<QUndoStack*> stacks() const; |
| QUndoStack *activeStack() const; |
| |
| #ifndef QT_NO_ACTION |
| QAction *createUndoAction(QObject *parent, |
| const QString &prefix = QString()) const; |
| QAction *createRedoAction(QObject *parent, |
| const QString &prefix = QString()) const; |
| #endif // QT_NO_ACTION |
| bool canUndo() const; |
| bool canRedo() const; |
| QString undoText() const; |
| QString redoText() const; |
| bool isClean() const; |
| |
| public Q_SLOTS: |
| void undo(); |
| void redo(); |
| void setActiveStack(QUndoStack *stack); |
| |
| Q_SIGNALS: |
| void activeStackChanged(QUndoStack *stack); |
| void indexChanged(int idx); |
| void cleanChanged(bool clean); |
| void canUndoChanged(bool canUndo); |
| void canRedoChanged(bool canRedo); |
| void undoTextChanged(const QString &undoText); |
| void redoTextChanged(const QString &redoText); |
| |
| private: |
| Q_DISABLE_COPY(QUndoGroup) |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QUNDOGROUP_H |